The chemical industry is being forced to evaluate new strategies for more effective utilization of renewable feedstocks to diminish the use of fossil resources. In this literature review, the integration of both acidic and alkaline pretreatment phases of hardwood and softwood chips with chemical pulping is discussed. Depending on the pretreatment conditions, high-volume sulfur-free fractions wi...

The need of dissolving pulp (DP) for rayon fiber production is increasing rapidly in recent years. Sustainable sources DP raw materials and an effective manufacturing process are urgently required. This study aims to manufacture with high brightness from Sansevieria-trifasciata (ST) through the pre-hydrolysis, soda-Anthraquinone (Soda-AQ) cooking, chlorine-free bleaching processes. cellulose co...

Soda-anthraquinone (soda-AQ) pulping of barley straw was used to obtain cellulosic pulps for papermaking purposes. The identified parameters, or variables to be optimized, were operating time, anthraquinone concentration, and PFI refiner revolutions, and the influence of these operating variables on pulp properties was studied. A polynomial model that reproduced the experimental results with er...

The microscopic structure and pulping properties of palm fiber were explored. Soda cooking sulfate conducted compared in terms physical strength the obtained pulps. Sulfate pulp showed better performance than soda pulp, as indicated by 23% higher tensile index, 49% tear 36% burst index. To further elevate strength, long fibered (LFP), namely commercial softwood was mixed with at levels from 20%...

This paper reports on the influence of independent variables in the ethylene glycol/soda pulping of olive wood trimmings [viz. cooking temperature (165–195°C) and time (30–90 min), ethylene glycol concentration (5–15%), soda concentration (2.5–7.5%), and liquid/solid ratio (4/1–6/1)], on the yield and viscosity and holocellulose, -cellulose, and lignin contents of the pulps. By using a central ...